SS490 is a structural hot rolled steel defined by JIS G 3101 standard. It is commonly utilized for diverse structural applications.
SS490 has superior tensile strength compared to SS400 steel.
It is employed in thicknesses ranging from 6 mm to 120 mm.
Its chemical makeup includes a maximum of 0.050 percent of both Phosphorous and Sulphur, with iron and minor impurities.
Its mechanical properties make it ideal for manufacturing structural tubes, pipes, rods, and various sectional steels.
Chemical Composition of SS490 steel
The chemical composition of this particular steel grade, which includes elements such as carbon, manganese, phosphorous, and sulphur, plays a critical role in determining its overall properties and performance. Specifically, the presence of carbon and manganese contributes to the strength to weight ratio, a key factor in its broad application in construction and manufacturing industries.
| Symbol of grade | C | Mn | P | S |
| SS490 | - | - | ≤0.050 | ≤0.050 |
Key characteristics of SS490 steel
- High tensile strength, offering superior load-bearing capabilities.
- Excellent ductility, allowing it to be formed into various shapes without compromising its structural integrity.
- Good weldability, facilitating easy joining and assembly of parts.
- Resilient in different weather conditions, offering long-term durability.
- Compliant with strict quality control measures, ensuring consistent performance.
SS490 application areas
Construction industry: used for the frame, support and other parts of steel structure buildings to improve the bearing capacity and safety of buildings.
Machinery manufacturing: manufacturing various mechanical parts, such as gears, bearings, etc.
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FAQ
Q: What is SS490 equivalent to?
A: ASTM A572 Grade 50
The SS490 equivalent isASTM A572 Grade 50 (High Strength Low Alloy Columbium-Vanadium Structural Steel), which is high strength low alloy (microalloy) steel plate - weldable.
Q: What is the difference between SS400 and SS490?
A: SS490 has superior tensile strength compared to SS400 steel. It is employed in thicknesses ranging from 6 mm to 120 mm. Its chemical makeup includes a maximum of 0.050 percent of both Phosphorous and Sulphur, with iron and minor impurities.
| Other steel plate | ||||
| Name | Material | Specification (mm) | Tons | Remark |
| Low Alloy | Q345A, Q345B, Q345C, Q345D, Q345E, Q390, Q420, Q460C, ST52-3, S355J2+N, SS400, SA302GrC, S275NL, 35CrMo | 6 - 350 | 5788.56 | Normalizing, tempered ,controlled rolling, hot rolling , Hot rolling,1st inspection, 2nd inspection, 3rd inspection |
| Pressure Vessel Plate | Q245R, Q345R, Q370R, 16MnDR, 09MnNiDR, 15CrMoR, 14Cr1MoR, 12Cr2Mo1R, SA516Gr60, SA516Gr70, SA516Gr485, SA285, SA387Gr11, SA387Gr12, SA387Gr22, P265,P295,P355GH,Q245R(R-HIC),Q345R(R-HIC) | 3 - 300 | 8650 | Normalizing, tempered ,controlled rolling, hot rolling , Hot rolling,1st inspection, 2nd inspection, 3rd inspection |
| High-Strength Plate | WH785D/E,Q960D/E, Q890D/E,WH60D/E,WH70B,Q550D,Q590D,Q690D/E | 8 - 120 | 3086.352 | Quenched and tempered |
| Wear-Resistant Plate | NM360, NM400, NM450, NM500 | 6 - 150 | 3866.297 | Quenched and tempered |
| Bridge Plate | Q235qC, Q345qC, Q370qC, Q420qC, Q345qDNH, Q370qDNH, A709 - 50F - 2, A709 - 50T - 2 | 8 - 200 | 2853.621 | Hot rolling, normalized ,hot rolling controlled rolling, quenched and tempered + toughness and brittleness |
